Architecture Design and Key Technology in Development of Distributed COM-Based WebGIS System
Architecture Design and Key Technology in Development of Distributed COM-Based WebGIS System
复制标题
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Tong Xiaohua
中科院分区：
文献类型：
--
作者：
Tong Xiaohua
提出了一种基于分布式组件对象模型技术的分布式WebGIS体系结构，并对分布式WebGIS开发中的关键问题进行了探讨。首先提出了一种新的数据模型SHAPE 2D，用于组织客户端的空间数据，然后研究了分布式WebGIS开发中的5个问题，包括中间件设计、数据组织机制、数据多分辨率表示、最后，以国土房产WebGIS开发为例，探讨了WebGIS系统的设计与快速定制，并通过系统实例验证了理论与方法的可行性。
A distributed WebGIS architecture is proposed on the basis of the distributed component object model technology and some key issues for the distributed WebGIS development are presented in this paper.A new data model named SHAPE2D is first developed to organize the spatial data in the clients.Five issues in the distributed WebGIS development are then studied,including the middleware design,data organization mechanism,data multi-resolution representation,spatial data storage and database model and structure.The spatial data compression method and the balance strategy between the vector and raster data transmission are further investigated to optimize network transmission.Finally,by taking land and housing WebGIS development as an example,the design and fast customization of a WebGIS system are discussed.The feasibility of the theories and methods is verified through the system.